Active steps are taken during active time, with the right intensity to improve health and fitness. Quantifying the level of health and fitness beneficial activity in steps allows for very simple targeting of daily activity. Basic recommendation: aim for 7000 steps or more a day.

Activity level describes your long-term physical activity and affects Polar Fitness Test. Activity levels are divided into "low" if you don't train regularly, "moderate" if you participate in recreational sports on a regular basis, "high" if you train heavily three times a week or more and ”top” if you participate in heavy physical training at least five times a week.

The samples of your heart rate, speed, cycling cadence, power and altitude are stored either in 1, 5, 15 or 60 second intervals. A longer interval gives you more recording time, while a shorter interval allows you to record more detailed data. A shorter recording rate uses the memory of the training computer up more rapidly, but enables more accurate data analysis using Polar software.

Aerobic fitness, also called cardiovascular fitness, reflects how much oxygen is in the blood your heart pumps and transports to your working muscles, as well as how efficiently your muscles can use that oxygen. See also Maximal oxygen uptake (VO2max ).

Anaerobic threshold is the physiological point during training at which your muscles start using more oxygen than the body can transport. As a result, the work of the muscles starts producing more lactic acid than the body can process and it starts to accumulate in the bloodstream. You can train your body to remove lactic acid by continually pushing yourself into a lactic acid burdened state, which makes your body adapt.

To help you train safely and effectively, the training computer determines your heart rate target zone limits automatically according to your age-based maximum heart rate (220 minus age). The limits are determined either in beats per minute (bpm), as a percentage (%) of your maximum heart rate, or as a heart rate reserve (% HRR). See also Maximal oxygen uptake (VO2max) and Manual target zone.

Your cycling cadence stands for your pedaling rate in revolutions per minute (rpm). Cadence is the central factor in improving cycling performance. A higher cadence reduces the force needed for each pedal stroke, and thus improves overall performance.
Running cadence measures how many times your either right or left foot hits the ground in one minute. Running cadence is measured as steps per minute. With this feature you can sharpen your cadence and make your ground contact time shorter. This will help you to find a balance between leg power and leg speed.

Cycling economy stands for cycling workload as kcal/h and kcal/km. With this feature you can prepare for your calorie expenditure and secure sufficient intake on a long ride. This feature is also useful for comparing and analyzing the loads of various training types and terrain.

Cycling efficiency is your energy expenditure converted into the power that propels the bike forward. Cycling efficiency measurement starts as soon as heart rate rises above 100 bpm and the training session has lasted for more than one minute. If the heart rate drops below 100 bpm during the session, the measurement of cycling efficiency value is stopped until your heart rate rises above 100 bpm again. Improvement in cycling efficiency indicates improved performance economy.

This feature is useful for maintaining a certain level of intensity in your training. You can set upper and lower limits for heart rate, cadence, speed or power output. The training computer gives audible and visual alarms if your cycling rate goes out of the preset range.

Distance (km, mi) can be set and measured in several ways. Training distance tells you the distance traveled during a training session. Trip distance tells you the distance from the latest trip reset. Lap distance tells you the distance of one lap. Total distance is the distance accumulated since the last reset. Odometer tells you the cumulative distance which you cannot reset.

EnergyPointer is an easy-to-use feature which tells you during a training session if the main effect of your training is fat burning or fitness improvement. EnergyPointer visually indicates the center point between these two training effects, so when you are below that point, you are improving fat burning, and above that point, you are improving your aerobic fitness.

This feature enables comparison of two values as graphs during training. For example, you can choose a graphical overview of your heart rate and altitude to see how altitude affects the intensity of your training .

Heart rate is the measurement of the work your heart does.
Heart rate can be expressed as the number of beats per minute or as a percentage of your maximum heart rate.
Heart rate can also be expressed as a percentage of your heart rate reserve, meaning the difference between your resting heart rate and maximum heart rate (HRR = HRmax - HRrest).
In Polar software or during strength training, heart rate can be displayed as a graphical trend.

Heart rate varies from beat to beat. Heart rate variability (HRV) is the variation in time between successive heartbeats, also called R-R intervals. HRV is affected, for example, by aerobic fitness. HRV of a well-conditioned heart is generally large at rest. During training, HRV decreases as the heart rate and training intensity increase.

When HeartTouch is on, different training information during training can be accessed without pressing buttons, for instance, when gloves make pressing buttons difficult, you can bring your training computer close to your transmitter.

You can define your target zones for a training session based on heart rate to help define the right intensity. When you are out of the preset zones, the training computer will give a visual and audible alarm.

Incline measurement tells you the uphill or downhill inclination in numerical form, helping you to adjust cycling effort accordingly. The feature shows you the uphill/downhill steepness in percentages and grades.

This feature enables you to define the target zone as you want and is suitable for your training. You can set the target zone for your training as beats per minute (bpm), as a percentage of your maximum heart rate, or as a percentage of your heart rate reserve (HRR%).

The maximum capacity for oxygen consumption by the body during maximum exertion. Also known as aerobic power or maximal oxygen intake/consumption. VO2max is a commonly used determinant of aerobic (cardiovascular) fitness. Aerobic fitness relates to how well your cardiovascular system works to transport and utilize oxygen in your body. The better your aerobic fitness, the higher your VO2max. VO2max stands for the oxygen consumption/uptake by the body and is usually expressed in ml×kg-1×min-1.

The highest number of heart beats per minute (bpm) during maximum physical exertion. For a rough estimate of your maximum heart rate, subtract your age from 220. HRmax is a useful tool for determining the intensity of training as intensity zones can be defined using HRmax. Some Polar products define maximum heart rate during the Polar Fitness Test, see also HRmax (Polar Fitness Test -based).

One repetition maximum (1RM) stands for the maximum weight you can lift in a single repetition for a given exercise. One repetition maximum can be used for determining your maximum strength. You can also use it as an upper limit to determine the desired load for an exercise (as % 1RM).

Overtraining may result from excessive hard training without proper rest to enable recovery. Other physical or psychological reasons, such as illness or overwork, also have an effect. The overtraining test determines whether you are in shape for a training session or need rest. The Overtraining test can be found in Polar ProTrainer 5 software.

Pace (expressed as min/km or min/mile) stands for the rate of speed. Pace is usually used in running. By setting a target pace, you can follow how fast you need to run in order to reach a certain distance in a predefined time.

Pedaling index is the ratio between the minimum and maximum forces of a single pedaling cycle. A pedaling cycle begins when a magnet on the crank passes a relay on the circuit board and ends when the magnet passes the relay again. The resulting ratio is averaged from the most recent pedaling cycles.
Pedaling index helps optimize pedaling technique by measuring the ‘roundness’ of force distribution, or how evenly the power is produced – the higher the pedaling index percentage, the better.

Polar Fitness Test measures your aerobic fitness at rest in just five minutes. The result, Polar OwnIndex, evaluates your maximal oxygen uptake (VO2max).
With the Polar Fitness Test, you can measure your aerobic fitness by yourself, automatically and without any exertion. All you need is your training computer. The Polar Fitness Test is as accurate in predicting the VO2max as any sub maximal fitness test. The test is based on heart rate and heart rate variability at rest and personal information.

Polar OwnCal calculates the number of calories expended during training. This feature allows you to follow the calories expended during one training session and cumulative calories expended during several training sessions.
Some Polar products also estimate the fat-burning percentage (fat% on display), that is, calories expended from fat during a workout which is expressed as a percentage of the total calories burned.

Polar OwnOptimizer feature is an easy and reliable test to determine whether your training is optimally developing your performance. OwnOptimizer helps you to optimize your training load during a training program so that you
experience an increase in performance and do not undertrain or overtrain in the long run. Based on the test, you are provided with a scale and description of your personal training status.

Polar OwnZone® determines your personal heart rate limits for a training session. Depending on the day and time, your physical state may vary, for instance, if you are stressed or tired, or if you are not fully recovered from your latest training session, Polar can determine that information from your heart rate and guide you to your ideal training zone for that moment.

Polar sport zones provide an easy way to select and monitor the intensity of your training and to follow sport zones based training programs. Training is divided into five zones based on percentages of your maximum heart rate: very light (50-60%HRmax), light (60-70%HRmax), moderate (70-80%HRmax), hard (80-90%HRmax) and maximum (90-100%HRmax).

The adaptive and personalized Polar STAR Training Program helps you reach your training targets. The training program gives you weekly targets, including intensity and duration, for your training.
The Polar STAR Training Program is based on your fitness level, activity level, training goal and personal information (weight, height, age and sex).

Polar Strength Training Guidance helps you to optimize your strength training by reading your heart rate and informing when your body is ready for the next set. It tells you how long to rest between each set in order to get the optimal impact.
You can also download max. three strength training workouts to your training computer from polarpersonaltrainer.com.

R-R recording rate saves heartbeat intervals, that is, intervals between successive heartbeats. This information is also shown as instantaneous heart rate in beats per minute in recorded samples. This enables the analysis of heart rate variability (HRV) using the ProTrainer 5 software with an accuracy of 1 ms.

The lowest number of heartbeats per minute (bpm) at complete rest. HRrest decreases as your fitness level increases. A typical value for adults is 60-80 bpm, but for top athletes it can be as low as 30 bpm. An exceptionally high resting heart rate may be a sign of over-exertion or illness.

The two-way rocker switch makes it easier to navigate through training data, allowing effortless control even at high speeds. The rider can quickly and safely operate the cycling computer by gently touching the left or right side of the handlebar unit.

The route elevation/altitude profile feature allows you to get a high resolution elevation profile of your training session during post training analysis with the Polar ProTrainer 5 software. It enables you to see where and when you were climbing, descending or on level ground.
When combining route elevation profile with other parameters like heart rate and speed, you can get a much more deeper understanding of how hard your body responded to every climb and the descent during your training session.

Your training computer stores your route data during training with the GPS sensor and enables you to download route information to a computer after the training session. Routes are shown in ProTrainer 5 software and can also be easily exported to other mapping and positioning software such as Google Earth.

Stride length is the average length of one step, that is, the distance between your right and left foot contacting the ground. Runners adjust stride length to gather speed: stride length increases as speed increases. Yet one of the most common mistakes novice runners make is over-striding. The most efficient stride length is the natural one – the one that feels most comfortable.

This feature is available in Polar software. When you transfer training results from your training computer to polarpersonaltrainer.com, you can follow your training load and recovery in the training diary.
Continuous monitoring of training load and recovery will help you recognize personal limits, avoid over- or undertraining, and adjust training intensity and duration according to your daily and weekly targets

This feature allows you to configure training computer displays to show the information that you need during your training session. Configure the displays either in the training computer or in ProTrainer 5 software.

Polar W.I.N.D. technology eliminates interference from external disturbances such as power lines which allows to have disturbance-free transmission. W.I.N.D stands for Wireless Integrated Network Device.

ZonePointer is a visible and moving symbol on the training computer display indicating whether you are inside the pre-set target zone. This feature helps you to reach the desired intensity/pace/speed/cadence targets.

Old Glossary

A figure expressed in beats per minute (bpm) representing the average heart rate measured over a specific period of time (e.g. an exercise session).

Average Heart Rate of Total Exercise

A figure expressed in beats per minute (bpm) representing the average heart rate measured over a specific period of time (e.g. an exercise session).

Body Mass Index (BMI)

The body mass index is a figure describing body’s weight relative to height, strongly correlating to total body fat content in adults

Cadence Sensor

A Polar accessory that measures the speed at which you turn the cranks of your bicycle (i.e. cadence), measured in revolutions per minute (rpm). Cadence sensor is available as an optional accessory

Calorie Expenditure (OwnCal)

The feature in Polar Heart Rate Monitors calculating the number of kilocalories expended during exercise is called OwnCal. This function allows you to follow the kilocalories expended during one exercise session (exercise on display) and cumulative kilocalories expended during several exercise sessions (total on display). The fat-burning percentage (fat% on display) calculates an estimate of kilocalories expended from fat during a workout and is expressed as a percentage of the total kilocalories burned.

Distance Based Interval

The Interval Trainer will automatically guide you through the interval training session with the help of preset exercise phases: warm-up, intervals and cool-down. The interval phase is divided into interval and recovery calculation sections, which alternate continuously throughout your interval phase. The distance-based interval ends your interval as you reach the selected distance.

Distance Based Recovery Measurement

The Interval Trainer will automatically guide you through the interval training session with the help of preset exercise phases: warm-up, intervals and cool-down. The interval phase is divided into interval and recovery calculation sections, which alternate continuously throughout your interval phase. The distance-based recovery measurement ends your recovery as you reach the selected distance.

Exercise Diary

Monitor the amount of calories burnt during exercise sessions in comparison to your weekly target. A feature of the Polar Weight Management (Polar WM42/WM41) Program Diary where you can view your exercise calories for the last 26 consecutive weeks and compare them to your weekly target

Exercise Files (the number of)

The number of exercise files stored in your heart rate monitor. An exercise file includes total exercise time, time in target zone and average heart rate.

Exercise Reminder

A visual exercise reminder appearing on the display of the heart rate monitor after three inactive days.

The time you have exercised with the stopwatch running. The Total Exercise Time feature keeps track of your cumulative exercise time since last resetting the counter. This feature gives you yet another way to set daily or weekly exercise goals for yourself.

Fitness Bullets

In Minutes: A feature showing a bullet on the display of your heart rate monitor for every 10 minutes spent exercising/training in your target heart rate zone.

In Calories: A feature showing a bullet on the display of your heart rate monitor for each 100 kcal expended in your target heart rate zone.

Fitness Exercise Diary

Monitors your weekly totals. Monitors the weekly frequency, the total time, total exercise count and amount of calories burned during the exercise sessions. The intensities of the weekly workout sessions are also displayed.

Fitness Test

Measures your fitness level in 5 minutes. A fitness test that measures your aerobic/cardiovascular fitness at rest in just five minutes. The result, Polar OwnIndex, predicts your maximal oxygen uptake (VO2max). The Polar Fitness Test is a revolutionary way to test aerobic fitness. Gender, age, height, body weight, in addition to level of physical activity, heart rate and heart rate variability at rest are all factors influencing the test results. The OwnIndex ranges usually from 20 to 95 and is comparable to VO2max, the golden standard of aerobic fitness.

OwnIndex is most meaningful when following changes in your fitness over a long period of time. Find out how fit you are for your age and gender by comparing your result to the global references listed in the Polar user's manuals. With the Polar Fitness Test you can measure your aerobic fitness by yourself, automatically and without any exertion. No other equipment other than a heart rate monitor is needed. The Polar Fitness Test is as accurate in predicting the VO2max as anysubmaximal fitness test.

Heart Rate (H/R)

In Beats per Minute: A measurement of the work your heart does, most commonly expressed as the number of beats per minute (bpm).

In Percentage of Max Heart Rate: A measurement of the work your heart does, expressed as % of your maximum heart rate.

Heart Rate Limits

Fully adjustable high & low target zones with audible alarm.

Heart Rate Rest Test

Measure your resting heart rate to determine how well you have adapted to extreme conditions. Take the Polar Heart rate Rest Test to measure your resting heart rate. This will provide you with information on the state of your physical fitness and recovery, or your acclimatization to altitude

Independent CountDown / CountUp Timer

The independent timer is a feature you can use during exercise. You can select a CountDown or CountUp timer to assist you in interval training. This feature may also be used to remind you to drink regularly, preventing dehydration.

Interval Setting

Automatically tracks laps and intervals allowing you to concentrate on your training performance

Interval Timers

The freely programmable Interval Trainer will automatically guide you through the interval training session with the help of the preset exercise phases: warm-up with a target heart rate zone and a countdown timer, up to 30 intervals with a target heart rate zone (after each interval you have a recovery calculation option), cool-down with a target heart rate zone and a countdown timer.

IR Interface

Fast and efficient transfer of exercise data via the optional Polar Infrared Interface. A feature allowing you to transfer heart rate information to a PC in real time.

Keeps U Fit - Own Workout Program

Guides you to reach your personal fitness goals. The Polar Keeps U Fit - Own Workout Program gives you personal guidance - how often, how hard, and how long you need to exercise to reach your personal fitness goals. The feature is included in the Polar F11 and F55 Fitness Heart Rate Monitors. In addition, the program can be used free of charge in Polar Fitness Trainer web service.

Maximum Oxygen Intake

The maximum capacity for oxygen consumption by the body during maximum exertion. Also known as aerobic power or maximal oxygen intake/consumption. VO2max is a commonly used determinant of aerobic (cardiovascular) fitness. Aerobic fitness relates to how well your cardiovascular system works to transport and utilize oxygen in your body. The better your aerobic fitness the higher your VO2max. The most accurate way to measure your VO2max is to perform a maximal exercise stress test in a laboratory. VO2max is usually expressed in ml*kg-1*min-1, sometimes in ml*min-1.

Maximum Heart Rate of Total Exercise

The highest number of heartbeats per minute (bpm) during maximum physical exertion. The HRmax-p score predicts your individual maximum heart rate. The most accurate way of determining your individual HRmax is to perform a maximal exercise stress test in a laboratory. HRmax is a useful tool for determining the intensity of exercise. For a rough estimate of your maximum heart rate subtract your age from 220

Mobile Link

Polar mobile applications are versatile tools for managing your exercises with a mobile phone. You can transfer your exercises from a Polar wrist unit to a compatible Nokia mobile phone. Transferring data is a good way to free memory in your wrist unit during longer trips, for example. Get instant feedback on your activities by viewing data curves (e.g., heart rate and altitude) and other detailed information about the activity on the phone’s bright color display. You can store data temporarily for later analysis, as the large memory capacity of your mobile phone allows you to save data from training sessions and competitions, and track your performance over time. Moreover, you have options for sharing the exercise with others by SMS or storing your exercise data for further analysis and for following your long-term improvement by forwarding it to the Polar PC software or web service.

NightVision

Electroluminescent back light.

Number of Exercise Files

The number of exercise files stored in your heart rate monitor. An exercise file includes total exercise time, time in target zone and average heart rate.

Nutrition Diary

Input and monitor your nutrition calories in comparison to your daily target. A function in Polar Weight Management Program Diary (WM 41/WM42), where you can view your automatically saved calorie intake for the last 14 consecutive days

OwnCal

Counts and displays calorie expenditure.

The Polar OwnCal feature shows your energy expenditure during one exercise session as well as your accumulated kilocalories during several exercise sessions.

You can set daily and weekly exercise goals in terms of calorie expenditure with the OwnCal feature. Because the OwnCal tracks both the energy expenditure during one exercise session and the accumulated kilocalories during a longer time e.g. one week, it helps in achieving both short term and long term goals.

Own Code

A feature that reduces possible interference from other heart rate monitors. The Polar OwnCode feature is included in the Polar M- and S-series (except in the S120 and S150).

OwnIndex

Automated fitness test predicts VO2max

OwnOptimizer

Train and rest in the right balance. Polar OwnOptimizer test tells you whether you have recovered enough for your next training session. Polar OwnOptimizer recovery test is an easy and reliable way to determine whether your training program is optimally developing your performance.
The OwnOptimizer can be found on Polar S625X running computer.

OwnRelax

Follow your body’s state of relaxation. Polar OwnRelax is the result of a relaxation session, which is an easy and quick way to test how relaxed you body is. The 5-minute relaxation session is based on heart rate and heart rate variability and can be measured with the Polar F55 Fitness Heart Rate Monitor. OwnRelax helps to track and improve overall well being. Daily relaxation session can be done anywhere, anytime, lying down, or sitting comfortably with no talk or disturbing noises.

OwnZone

Determines personal heart rate limits for an exercise session. The OwnZone feature determines an individual light to moderate intensity exercise zone. It guides you through an appropriate warm-up routine and automatically determines a safe and effective exercise heart rate zone - your OwnZone - while taking into account your current physical condition. The OwnZone Basic corresponds to 65-85 % of the maximum heart rate. Exercise at the lower end of this intensity level can be conducted for extended periods safely and often yields the best results for weight control, while exercise at the upper end of this intensity produces the best results for improving cardiovascular fitness.

OwnZone Advanced

Determines personal heart rate limits for an exercise session. The OwnZone feature determines an individual light to moderate intensity exercise zone. It guides you through an appropriate warm-up routine and automatically determines a safe and effective exercise heart rate zone - your OwnZone - while taking into account your current physical condition. The OwnZone Advanced feature consists of two training areas: OwnZone Low and OwnZone High, providing greater variations in exercising than the OwnZone Basic area, which can be rather wide for more focused training.

The OwnZone Low corresponds to light to moderate intensity level or about 65-78% of your maximum heart rate. The OwnZone Low is ideal for warming up, for weight loss-related exercise for sedentary and less fit individuals and for those recovering from sickness or intensive training.

OwnZone High corresponds to moderate intensity or, at most, to heavy intensity exercise typically targeting fitness benefits and corresponds to about 78-87% of maximum heart rate. Switching to this intensity during exercise is useful, for instance, when you want to add a higher intensity section to your exercise.

Guidance in muscular strength training always with you. Polar body workout gives basic guidance for muscular strength training. Body workout provides strength training movements, count of sets, repetitions, and weights recommendations. The workout can be easily performed by following the guidance given by the Polar F55 Fitness Heart Rate Monitor. Body workout can be edited according to your development.

Polar Performance Software

The Polar Precision Performance Software is a ground-breaking analysis software that gives you high-tech tools for gathering and studying the data provided by your Polar product. Using your own PC, you can update your semi-automatic training diary, design your training sessions, build a personal resource of past routines, reports and performance details or send settings and reminders to your Polar wrist unit using infrared communication.

A frictionless sensor measuring the vibrations of the chain as it passes through the sensor. It measures the average and maximum cadence, power output and pedaling index of the exercise in addition to left/right pedaling balance (average balance between left and right foot pedaling).

Polar Weight Management Program

Your personal weight management program, which helps you to lose and maintain your weight. The Weight Management Program gives guidance on how many calories to eat and how many to expend through exercise in order to achieve target body weight in chosen duration.

The degree of relaxation rate is highly individual, therefore compare the value to your own baseline. To find out your personal baseline relaxation rate, you need to measure your relaxation rate in a recovered state. Write down your relaxation rate each 15 seconds for 2 minutes. Sum up the eight relaxation values and divide them by eight to obtain the average value. This is your baseline relaxation rate.

Self Walk Test

A fitness test developed by Polar and the UKK Institute to measure aerobic/cardiovascular fitness with a brisk 1.24-mile (2-kilometer) walk on a hard, even surface. The result of the test, the WalkIndex, predicts a person’s maximal oxygen uptake

Slope Counter

Shows the number of slopes you have gone down the piste. The Slope Counter will automatically record the number of slopes you cover. A course of at least 50m /165ft descended continuously is registered as a slope.

SonicLink

A feature allowing uploads of exercise settings from a PC with UpLink and downloads of exercise data to a PC with SonicLink.

A sensor measuring speed and distance. A wireless sensor measuring cycling speed and distance via a magnet rotating on the front or the rear wheel depending on the sensor.

Sport Zones

Helps you to train at the right intensity. Polar sport zones provides an easy way to select and monitor the intensity of your training and to follow Polar’s sport zones based training programs. The training is divided into five zones based on percentages of your maximum heart rate: very light (50-60%HRmax), light (60-70% HRmax), moderate (70-80%HRmax), hard (80-90% HRmax) and maximum (90-100% HRmax).

Stopwatch

Stop/Start sports watch.

Target Zone Alarms

A feature informing you every time your heart rate exceeds the upper limit or falls below the lower limit of your target heart rate zone during an exercise session.

Temperature

Temperature readout is integrated into the Polar S710.

Time in Target Zone

The Time in Target Zone feature calculates the amount of total exercise time spent in your personal target zone. You can use this feature together with the Total Exercise Time to determine the effectiveness of your exercise program

Time in Training Zone

Indicates exercise time spent in between high & low limits.

Time of Day

Time of day watch, date & alarm.

Uplink

A feature allowing for uploads of exercise settings and monitor icons from the Polar website or from the Polar Precision Performance SW to a wrist unit. In addition, you can transfer the same day's intake calories from the Polar Weight Management Web Service's Menu Planner to your
Polar Weight Management product. In order to use the UpLink sound feature, be sure that your computer sound level is high enough. For sound transmission you need to use the headphones or dynamic loudspeakers.

Visual and Audible Alarms

A feature informing you every time your heart rate and/or speed/pace
exceeds the upper limit or falls below the lower limit of your target heart rate zone during an exercise session

WalkIndex Self Walk Test

A fitness test developed by Polar and the UKK Institute to measure aerobic/cardiovascular fitness with a brisk 1.24-mile (2-kilometer) walk on a hard, even surface. The result of the test, the WalkIndex, predicts a person’s maximal oxygen uptake (VO2max).

Weight Diary

Input and monitor your current weight in comparison to your target weight. Program function: You can input and monitor your current weight as compared to your target weight.

You & I Setting

Settings for two users

Zone Pointer

A visible and audible feature on the display of your heart rate monitor showing your target heart rate zone and where your current heart rate is within that zone.

ZoneLock

Simply the easiest way to set a target zone. You can activate a target zone with a press of a button during your run. You can also deactivate the zone alarm just as easily – by pressing a button

See the new PowerBreather
- A revolutionary and versatile inspiratory muscle trainer and strengthener.
POWERbreather helps you improve one of the most important components in
your daily life - your lungs and breathing!